| 摘要 |
<p>PURPOSE:To make the preparation of a mechanism for preventing the generation of sag at the time of returning a sent label unnecessary by adjusting the sensitivity of a projector during the repeat of sending/returning of the label. CONSTITUTION:When a sensitivity setting mode is specified by an input opera tion part 11, the label transfer of a feeding/returning control means 30 is started after resetting or initializing respective parts and the level decision of a level deciding means 25 is started. When a labeling pitch is transferred or an inter- label gas is detected, the label transfer is stopped, and when the level does not coincide with the contents of a reference value memory 26 as the decided result of the means 25, the resistance value of an emitter resistor is changed by a sensitivity changing means 27. When continuous coincidence less than N times is obtained, a label transfer direction is inverted, and when the level coincides with the reference value continuously N times, the obtained sensitivity resistance value is set up as a constant value.</p> |
